Why it works: Plum and sugar are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 2,313 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓
English Guava
Ingredients
Directions
Prepare the fruit
Remove the stalks from the guavas and cut some of them.
Place the guavas in stone jars and add a few imperatrice plums if available.
Put the jars in pans of water and boil them.
Drain the juice and strain it through a jelly bag.
Make the preserve
Weigh the juice and boil it quickly for 15 to 20 minutes.
Stir in ¾ lb of sugar for every lb of juice until dissolved.
Remove any scum and boil the preserve again for 8 to 12 minutes.
Check if it jellies firmly on the skimmer; if not, boil longer.
Pour the finished preserve into shallow pans or small molds.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Plum + sugartop 21% of all pairsSmell alikelowCooked together2,313 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Shepherd's bullace (or other plums)
- Provides pectin and acid that help the preserve set into a firm jelly.
- Sugar
- Sweetens the preserve and, with boiling, thickens the juice and helps it set.
The step that matters
Checking the set on the skimmer. Boiling too briefly leaves the juice runny, while the sugar and pectin need enough concentration to gel. Testing on a cold skimmer shows whether the preserve has reached a firm set before it is poured.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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